1997•PROCEEDINGS OF CIVIL ENGINEERING IN THE OCEANOpen access

Wave Overtopping Characteristics of High Mound Composite Seawalls

Shigeo Takahashi, Kenichiro SHIMOSAKO, Yuichi Saitoh, Hironobu Miura, Yoon‐Koo Kang

Abstract

A series of model experiments were conducted to investigate wave overtopping characteristics of high mound composite seawalls with slit type superstructures. This type seawall is economical and suitable especially in a bay with a large tidal range. Its wave overtopping was found to be smaller than that of rubble-mound-type seawalls. Several types of rubble foundation with different kinds of armor blocks, and modified superstructures were also tested. The slit type superstructure with a slit upper beam was found to be most effective to reduce wave overtopping.

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Key concepts: Seawall, Rubble, Geology, Superstructure, Geotechnical engineering, Foundation (evidence), Armour, Breakwater